A single nozzle molding parts cooling device for injection molds

Abstract

The utility model provides a single-nozzle molding part cooling device for an injection mold, comprising a hollow connecting rod, a nozzle with an end extending to the outside of the connecting rod, a gap channel between the connecting rod and the nozzle, a top end of the connecting rod detachably connected to a glue position part inside the mold, the nozzle and the gap channel are respectively connected to the cooling channel of the glue position part, a switching joint is connected to the bottom end of the connecting rod, a first channel and a second channel are provided in the switching joint, the first channel and the second channel are respectively connected to the gap channel and the nozzle. The utility model has a compact structure, and a circulating water circuit for cooling the glue position part can be formed through the nozzle, the cooling channel and the gap channel, so as to ensure the cooling requirements of the glue position part, realize the effective control of the temperature of each glue position area of ​​the mold, avoid the situation that the heat accumulation due to the excessively high local temperature prolongs the molding time, and improve the production efficiency of the mold product.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices for injection molds, in particular to a cooling device for single-nozzle molding parts of an injection mold. Background Art

[0002] In the injection molding production process, temperature, pressure, position, and speed are collectively called the "four elements of molding". Temperature is a key element of the molding process. On the one hand, it plays a great role in improving resin flow, adjusting shrinkage and deformation, and on the other hand, full utilization of the cooling system function can achieve the effect of speeding up the cycle, allowing the product in the mold to quickly cool to a temperature that meets the requirements for mold opening and part removal, thereby achieving increased production and efficiency.

[0003] Therefore, a well-designed cooling system can significantly shorten the product molding time, improve the production efficiency of mold products and reduce costs.

[0004] In the molding mold, the glue position parts represented by the inclined ejector block or the straight ejector block cannot be connected to the cooling water channel by traditional methods due to their small size and compact structure. When the glue position such as the inclined ejector block or the straight ejector block covers a large area, or there is a glue position structure that needs to be cooled intensively, it is necessary to meet the need for connecting to the cooling water channel, otherwise the cooling time will have to be extended to cool the product to the temperature that meets the ejection temperature, thereby lengthening the molding cycle and reducing production efficiency. Utility Model Content

[0005] The utility model aims to provide a single-nozzle molding part cooling device for an injection mold to solve the above technical problems.

[0006] The utility model provides a single-nozzle molding part cooling device for an injection mold, comprising a hollow connecting rod, a nozzle with an end extending to the outside of the connecting rod is arranged inside the connecting rod, a gap channel is arranged between the connecting rod and the nozzle, the top end of the connecting rod is detachably connected to a glue position component inside the mold, the nozzle and the gap channel are respectively communicated with the cooling channel of the glue position component, an adapter is connected to the bottom end of the connecting rod, a first channel and a second channel are arranged inside the adapter, the first channel and the second channel are respectively communicated with the gap channel and the nozzle.

[0007] Furthermore, a stepped groove is provided in the adhesive member, and the stepped groove comprises a first step groove, a second step groove and a third step groove which are coaxially arranged from top to bottom along the height direction.

[0008] Furthermore, the cooling channel includes a main water channel, a connecting water channel and a return water channel, and the main water channel and the return water channel are respectively connected to the stepped groove.

[0009] Furthermore, the top end of the nozzle is installed in the first-step groove, the inner diameter of the first-step groove is consistent with the outer diameter of the nozzle, the main waterway is connected to the first-step groove, and the inner diameter of the main waterway is consistent with the inner diameter of the inner hole of the nozzle.

[0010] Furthermore, the water return path is communicated with the second-step groove, and the second-step groove is communicated with the gap channel.

[0011] Furthermore, the top end of the connecting rod is installed in the third-step groove, and the inner diameter of the third-step groove is consistent with the outer diameter of the connecting rod.

[0012] Furthermore, a sealing member is provided between the connecting rod and the third-step groove, and the connecting rod and the adhesive member are connected via a positioning pin.

[0013] Furthermore, a stepped slot is provided in the adapter, and the stepped slot comprises a first-step slot, a second-step slot and a third-step slot which are coaxially arranged from bottom to top along the height direction.

[0014] Furthermore, the bottom end of the nozzle is installed in the first-stage slot, the inner diameter of the first-stage slot is consistent with the outer diameter of the nozzle, and the first-stage slot is connected to the first channel.

[0015] Furthermore, the bottom end of the connecting rod is installed in the third-stage slot, the inner diameter of the third-stage slot is consistent with the outer diameter of the connecting rod, the second-stage slot is connected to the gap channel, and the second-stage slot is connected to the second channel.

[0016] The utility model has a compact structure. By arranging a gap channel between the connecting rod and the nozzle and a cooling channel in the glue position part, cooling water can form a circulating water path for cooling the glue position part through the nozzle, the cooling channel and the gap channel. By arranging the first channel and the second channel, the overall cooling water is circulated to ensure the cooling requirement of the glue position part, and effectively control the temperature of each glue position area of ​​the mold, avoid the occurrence of heat accumulation due to excessively high local temperature, thereby prolonging the molding time, and improve the production efficiency of the mold product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is the internal structure diagram of the utility model;

[0020] Figure 3 This is the internal structure diagram of the glue positioner of the utility model;

[0021] Figure 4 For the utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 5 This is the internal structure diagram of the adapter of the utility model;

[0023] Description of reference numerals:

[0024] In the figure: 1-connecting rod, 11-gap channel, 12-first external thread, 13-second external thread, 14-first locking nut, 15-second locking nut, 2-nozzle, 3-glue positioner, 31-first step groove, 32-second step groove, 33-third step groove, 41-main water channel, 42-connecting water channel, 43-return water channel, 5-adapter, 51-first step slot, 52-second step slot, 53-third step slot, 61-first channel, 62-second channel, 71-top sealing ring, 72-side sealing ring, 73-locating pin; DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example 1

[0029] like Figure 1-Figure 5 As shown:

[0030] A single-nozzle molded part cooling device for an injection mold comprises a hollow connecting rod 1, the top end of the connecting rod 1 is detachably connected to a glue positioner 3 inside the mold, a first external thread 12 is arranged on the outer wall of the bottom end of the connecting rod 1, an adapter 5 is threadedly connected to the bottom of the connecting rod, and an internal thread matching the first external thread 12 is arranged on the inner wall of the adapter 5.

[0031] The connecting rod 1 is provided with two nozzles 2 whose ends extend to the outside of the connecting rod 1. The nozzles 2 are copper or stainless steel metal tubes. There is a gap channel 11 between the connecting rod 1 and the nozzles 2. The two ends of the nozzles 2 are respectively inserted into the glue position member 3 and the adapter 5.

[0032] The top end of the nozzle 2 and the gap channel 11 are respectively communicated with the cooling channel of the glue position member 3 .

[0033] like Figure 3 As shown, a stepped groove is provided in the adhesive member 3, and the stepped groove comprises a first step groove 31, a second step groove 32 and a third step groove 33 which are coaxially arranged from top to bottom along the height direction.

[0034] The cooling channel includes a main water channel 41 , a connecting water channel 42 and a return water channel 43 . The main water channel 41 and the return water channel 43 are respectively connected to the stepped groove. The main water channel 41 is coaxially arranged with the connecting rod 1 .

[0035] The main water channel 41, the connecting water channel 42 and the return water channel 43 in the glue position member 3 are processed by drilling, and plugs are set at the ports where the main water channel 41, the connecting water channel 42 and the return water channel 43 are connected to the outside to prevent the cooling water from flowing out.

[0036] like Figure 3 and Figure 4As shown, the top end of the nozzle 2 is installed in the first-step groove 31, the inner diameter of the first-step groove 31 is consistent with the outer diameter of the nozzle 2, the main waterway 41 is connected to the first-step groove 31, and the inner diameter of the main waterway 41 is consistent with the inner diameter of the inner hole of the nozzle 2.

[0037] The water return path 43 is in communication with the second-step groove 32 , and the second-step groove 32 is in communication with the gap channel 11 .

[0038] The top end of the connecting rod 1 is installed in the third-step groove 33 , and the inner diameter of the third-step groove 33 is consistent with the outer diameter of the connecting rod 1 .

[0039] The cooling water in the nozzle 2 flows out from the top of the nozzle 2, and the cooling water flows through the main water channel 41, the connecting water channel 42, the return water channel 43 and the gap channel 11 in sequence to form a loop.

[0040] A top sealing ring 71 is provided between the connecting rod 1 and the top surface of the third-step groove 33, and a side sealing ring 72 is provided between the outer wall of the connecting rod 1 and the side wall of the third-step groove 33. The top sealing ring 71 and the side sealing ring 72 are provided to improve the overall sealing effect and prevent the cooling water from flowing out.

[0041] A pin hole is provided in the third-step groove 33 of the positioning member 3, and an arc groove coaxial with the pin hole is provided on the outer wall of the connecting rod 1. The connecting rod 1 is connected to the positioning member 3 via a positioning pin 73, which is arranged in the pin hole and the arc groove.

[0042] like Figure 1 and Figure 2 As shown, the outer wall of the connecting rod 1 near the bottom end is provided with a second external thread 13, and the second external thread 13 is externally threaded with a first locking nut 14 and a second locking nut 15. The connecting rod 1 is locked on the inclined ejector seat or the inclined ejector pin through the double nut structure composed of the first locking nut 14 and the second locking nut 15. The double nut structure increases the stable friction resistance and automatically prevents loosening.

[0043] like Figure 5 As shown, a stepped slot is provided in the adapter 5, and the stepped slot comprises a first-step slot 51, a second-step slot 52 and a third-step slot 53 which are coaxially arranged from bottom to top along the height direction.

[0044] A first channel 61 and a second channel 62 are provided in the adapter 5 , and the first channel 61 and the second channel 62 are communicated with the gap channel 11 and the nozzle 2 respectively.

[0045] like Figure 2 and Figure 5 As shown, the bottom end of the nozzle 2 is installed in the first-stage slot 51 , the inner diameter of the first-stage slot 51 is consistent with the outer diameter of the nozzle 2 , and the first-stage slot 51 is connected to the first channel 61 .

[0046] The bottom end of the connecting rod 1 is installed in the third-stage slot 53 , the inner diameter of the third-stage slot 53 is consistent with the outer diameter of the connecting rod 1 , the second-stage slot 52 is connected to the gap channel 11 , and the second-stage slot 52 is connected to the second channel 62 .

[0047] The ports of the first channel 61 and the second channel 62 are both provided with pipe threads for installing water nozzles and further connected to external mold temperature equipment.

[0048] In this embodiment, a guide sleeve may be sleeved on the outside of the connecting rod 1, and the guide sleeve is in sliding contact with the outer wall of the connecting rod 1. The guide sleeve plays a role in positioning and guiding the connecting rod 1, so that the movement of the connecting rod 1 during use is more stable and smooth, and the connecting rod 1 is protected to avoid bending and breaking during ejection, thereby improving work efficiency and product precision.

[0049] The utility model has a compact structure. By arranging a gap channel 11 between the connecting rod 1 and the nozzle 2 and a cooling channel in the glue position component 3, cooling water can form a circulating water path for cooling the glue position component 3 through the nozzle 2, the cooling channel and the gap channel 11. By arranging the first channel 61 and the second channel 62, the overall cooling water is circulated to ensure the cooling requirement of the glue position component 3. This effectively replaces the traditional method of relying on workers' skills and experience to determine the cooling effect, realizes effective control of the temperature of each glue position area of ​​the mold, avoids the situation where heat accumulation due to excessively high local temperature prolongs the molding time, and improves the production efficiency of mold products.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A single nozzle molding part cooling device for an injection mold, characterized in that: It comprises a hollow connecting rod, wherein a nozzle with an end extending to the outside of the connecting rod is arranged inside the connecting rod, a gap channel is arranged between the connecting rod and the nozzle, the top end of the connecting rod is detachably connected to a glue position member inside the mold, the nozzle and the gap channel are respectively connected to a cooling channel of the glue position member, and the bottom end of the connecting rod is connected to a adapter, wherein a first channel and a second channel are arranged inside the adapter, and the first channel and the second channel are respectively connected to the gap channel and the nozzle.

2. The single nozzle molding part cooling device of the injection mold according to claim 1, characterized in that: A stepped groove is provided in the adhesive member, and the stepped groove comprises a first step groove, a second step groove and a third step groove which are coaxially arranged from top to bottom along the height direction.

3. The single nozzle molding part cooling device of the injection mold according to claim 2, characterized in that: The cooling channel includes a main water channel, a connecting water channel and a return water channel, and the main water channel and the return water channel are respectively connected to the stepped groove.

4. The single nozzle molding part cooling device of the injection mold according to claim 3, characterized in that: The top end of the nozzle is installed in the first-step groove, the inner diameter of the first-step groove is consistent with the outer diameter of the nozzle, the main waterway is connected to the first-step groove, and the inner diameter of the main waterway is consistent with the inner diameter of the inner hole of the nozzle.

5. The single nozzle molding part cooling device of the injection mold according to claim 3, characterized in that: The water return path is communicated with the second-step groove, and the second-step groove is communicated with the gap channel.

6. The single nozzle molding part cooling device of the injection mold according to claim 3, characterized in that: The top end of the connecting rod is installed in the third-step groove, and the inner diameter of the third-step groove is consistent with the outer diameter of the connecting rod.

7. The single nozzle molding part cooling device of the injection mold according to claim 6, characterized in that: A sealing member is provided between the connecting rod and the third-step groove, and the connecting rod and the adhesive member are connected via a positioning pin.

8. The single nozzle molding part cooling device of the injection mold according to claim 1, characterized in that: A stepped slot is provided in the adapter, and the stepped slot comprises a first-step slot, a second-step slot and a third-step slot which are coaxially arranged from bottom to top along the height direction.

9. The single nozzle molding part cooling device of the injection mold according to claim 8, characterized in that: The bottom end of the nozzle is installed in the first-stage slot, the inner diameter of the first-stage slot is consistent with the outer diameter of the nozzle, and the first-stage slot is connected to the first channel.

10. The single nozzle molding part cooling device of the injection mold according to claim 8, characterized in that: The bottom end of the connecting rod is installed in the third-stage slot, the inner diameter of the third-stage slot is consistent with the outer diameter of the connecting rod, the second-stage slot is connected to the gap channel, and the second-stage slot is connected to the second channel.

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